package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //将密码进行md5加密
        password= DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
    /*
    * 新增员工*/
    @Override
    public void save(EmployeeDTO employeeDTO) {
        //对象转换
        Employee e= new Employee();
        //对象属性拷贝 属性名一致
        BeanUtils.copyProperties(employeeDTO, e);
        //设置账号状态
        e.setStatus(StatusConstant.ENABLE);
        //设置密码
        //将密码进行md5加密
        e.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
/*        //设置创建时间和更新时间
        e.setCreateTime(LocalDateTime.now());
        e.setUpdateTime(LocalDateTime.now());
        //获取当前登录用户id
        e.setCreateUser(BaseContext.getCurrentId());
        e.setUpdateUser(BaseContext.getCurrentId());*/

        employeeMapper.insert(e);

    }
    /*
    * 分页查询
    * */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //设置分页查询参数
        PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
        //查询数据
        Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
        //封装分页结果
        PageResult pageResult = new PageResult();
        pageResult.setTotal(page.getTotal());
        pageResult.setRecords(page.getResult());

        return pageResult;
    }

    /*
    * 设置员工状态
    * */

    @Override
    public void setStatus(Integer status, Long id) {
        Employee employee=Employee.builder()
                        .status(status)
                        .id(id)
                        .build();
        employeeMapper.update(employee);
    }

    /*
    * 根据id查询员工信息
    * */

    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("******");
        return employee;
    }

    /*
    * 修改员工信息
    * */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
/*        //设置更新时间
        employee.setUpdateTime(LocalDateTime.now());
        //获取当前登录用户id
        employee.setUpdateUser(BaseContext.getCurrentId());*/
        //更新数据
        employeeMapper.update(employee);
    }
}
